GB510487A - Improvements in and relating to the protection of magnesium rich alloys - Google Patents
Improvements in and relating to the protection of magnesium rich alloysInfo
- Publication number
- GB510487A GB510487A GB26684/38A GB2668438A GB510487A GB 510487 A GB510487 A GB 510487A GB 26684/38 A GB26684/38 A GB 26684/38A GB 2668438 A GB2668438 A GB 2668438A GB 510487 A GB510487 A GB 510487A
- Authority
- GB
- United Kingdom
- Prior art keywords
- sulphate
- bath
- coating
- given
- articles
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
- 229910045601 alloy Inorganic materials 0.000 title abstract 3
- 239000000956 alloy Substances 0.000 title abstract 3
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 title abstract 2
- 239000011777 magnesium Substances 0.000 title abstract 2
- 229910052749 magnesium Inorganic materials 0.000 title abstract 2
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 abstract 3
- 239000002535 acidifier Substances 0.000 abstract 2
- GRWVQDDAKZFPFI-UHFFFAOYSA-H chromium(III) sulfate Chemical compound [Cr+3].[Cr+3].[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O GRWVQDDAKZFPFI-UHFFFAOYSA-H 0.000 abstract 2
- 239000011248 coating agent Substances 0.000 abstract 2
- 238000000576 coating method Methods 0.000 abstract 2
- 238000000034 method Methods 0.000 abstract 2
- KMUONIBRACKNSN-UHFFFAOYSA-N potassium dichromate Chemical compound [K+].[K+].[O-][Cr](=O)(=O)O[Cr]([O-])(=O)=O KMUONIBRACKNSN-UHFFFAOYSA-N 0.000 abstract 2
- 239000011253 protective coating Substances 0.000 abstract 2
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical class O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 abstract 1
- VMHLLURERBWHNL-UHFFFAOYSA-M Sodium acetate Chemical compound [Na+].CC([O-])=O VMHLLURERBWHNL-UHFFFAOYSA-M 0.000 abstract 1
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 abstract 1
- DOIXGGGORNAJAT-UHFFFAOYSA-M [NH4+].[Ni+].[O-]S([O-])(=O)=O Chemical compound [NH4+].[Ni+].[O-]S([O-])(=O)=O DOIXGGGORNAJAT-UHFFFAOYSA-M 0.000 abstract 1
- 239000003513 alkali Substances 0.000 abstract 1
- 239000007864 aqueous solution Substances 0.000 abstract 1
- SOCTUWSJJQCPFX-UHFFFAOYSA-N dichromate(2-) Chemical compound [O-][Cr](=O)(=O)O[Cr]([O-])(=O)=O SOCTUWSJJQCPFX-UHFFFAOYSA-N 0.000 abstract 1
- 229910052751 metal Inorganic materials 0.000 abstract 1
- 239000002184 metal Substances 0.000 abstract 1
- 150000002739 metals Chemical class 0.000 abstract 1
- 230000004048 modification Effects 0.000 abstract 1
- 238000012986 modification Methods 0.000 abstract 1
- LGQLOGILCSXPEA-UHFFFAOYSA-L nickel sulfate Chemical compound [Ni+2].[O-]S([O-])(=O)=O LGQLOGILCSXPEA-UHFFFAOYSA-L 0.000 abstract 1
- 150000007524 organic acids Chemical class 0.000 abstract 1
- 235000005985 organic acids Nutrition 0.000 abstract 1
- 150000003839 salts Chemical class 0.000 abstract 1
- 239000001632 sodium acetate Substances 0.000 abstract 1
- 235000017281 sodium acetate Nutrition 0.000 abstract 1
- 239000000243 solution Substances 0.000 abstract 1
- 239000001117 sulphuric acid Substances 0.000 abstract 1
- 235000011149 sulphuric acid Nutrition 0.000 abstract 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C22/00—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals
- C23C22/05—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions
- C23C22/06—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions using aqueous acidic solutions with pH less than 6
- C23C22/24—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions using aqueous acidic solutions with pH less than 6 containing hexavalent chromium compounds
- C23C22/30—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions using aqueous acidic solutions with pH less than 6 containing hexavalent chromium compounds containing also trivalent chromium
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C22/00—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals
- C23C22/05—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions
- C23C22/06—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions using aqueous acidic solutions with pH less than 6
- C23C22/24—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions using aqueous acidic solutions with pH less than 6 containing hexavalent chromium compounds
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C22/00—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals
- C23C22/05—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions
- C23C22/06—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions using aqueous acidic solutions with pH less than 6
- C23C22/24—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions using aqueous acidic solutions with pH less than 6 containing hexavalent chromium compounds
- C23C22/26—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions using aqueous acidic solutions with pH less than 6 containing hexavalent chromium compounds containing also organic compounds
- C23C22/27—Acids
Landscapes
- Chemical & Material Sciences (AREA)
- General Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Chemical Treatment Of Metals (AREA)
- Chemically Coating (AREA)
Abstract
510,487. Forming protective coatings on metals. HIGH DUTY ALLOYS, Ltd., and ALLEN, F. A. Sept. 13, 1938, No. 26684. Addition to 482,689. [Class 82 (ii)] In a modification of the process for coating articles of magnesium rich alloys forming the subject of the parent Specification, an acidifying agent is added to the aqueous solution of alkali dichromate and nickel sulphate, chromium sulphate, or nickel ammonium sulphate, to produce or maintain a pH value between 2 and 6.4, and preferably between 3.4 and 4.4, the process being thereby facilitated and the protective coating improved. Preferably the acidifying agents employed ionize in solution only slightly, examples being organic acids and salts thereof. An example is given of a bath containing chromium sulphate, potassium dichromate, acetic acid, and sodium acetate. The articles may be cleaned in a bath of chromic and nitric acids, and may be then given a sulphuric acid dip, before being treated in the coating bath.
Priority Applications (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB10354/37A GB482689A (en) | 1937-04-12 | 1937-04-12 | Improvements in and relating to the protection of magnesium rich alloys |
| GB26684/38A GB510487A (en) | 1937-04-12 | 1938-09-13 | Improvements in and relating to the protection of magnesium rich alloys |
| FR848117D FR848117A (en) | 1937-04-12 | 1938-12-28 | Improvements to the protection of alloys rich in magnesium |
| US255165A US2224245A (en) | 1937-04-12 | 1939-02-07 | Protection of magnesium-rich alloys |
| BE435038D BE435038A (en) | 1937-04-12 | 1939-06-22 | IMPROVEMENTS IN THE PROTECTION OF ALLOYS RICH IN MAGNESIUM |
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB10354/37A GB482689A (en) | 1937-04-12 | 1937-04-12 | Improvements in and relating to the protection of magnesium rich alloys |
| GB2224245X | 1938-09-13 | ||
| GB26684/38A GB510487A (en) | 1937-04-12 | 1938-09-13 | Improvements in and relating to the protection of magnesium rich alloys |
| GB848117X | 1938-09-13 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB510487A true GB510487A (en) | 1939-08-02 |
Family
ID=61187025
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB10354/37A Expired GB482689A (en) | 1937-04-12 | 1937-04-12 | Improvements in and relating to the protection of magnesium rich alloys |
| GB26684/38A Expired GB510487A (en) | 1937-04-12 | 1938-09-13 | Improvements in and relating to the protection of magnesium rich alloys |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB10354/37A Expired GB482689A (en) | 1937-04-12 | 1937-04-12 | Improvements in and relating to the protection of magnesium rich alloys |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US2224245A (en) |
| BE (1) | BE435038A (en) |
| FR (1) | FR848117A (en) |
| GB (2) | GB482689A (en) |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE740325C (en) * | 1939-07-06 | 1943-11-30 | Deutsches Reich Vertreten Durc | Acid-free bath for the production of anti-corrosion coatings on magnesium alloys |
| US2459365A (en) * | 1942-04-03 | 1949-01-18 | Permanente Metals Corp | Electrolytic protective surface treatment of magnesium base alloys |
| US2480448A (en) * | 1943-04-28 | 1949-08-30 | Permanente Metals Corp | Protective surface treatment of magnesium base alloys |
| US2472592A (en) * | 1945-01-09 | 1949-06-07 | Allegheny Ludlum Steel | Inorganic insulating coating for electrical steel sheet and strip |
| US2483510A (en) * | 1945-04-14 | 1949-10-04 | United Chromium Inc | Composition for dip coating solution and dip process for coloring zinc |
| US2628925A (en) * | 1947-06-24 | 1953-02-17 | Rheem Mfg Co | Bright corrosion resistant coating of metals |
| US3298876A (en) * | 1963-09-09 | 1967-01-17 | R O Hull & Company Inc | Process and composition for forming clear protective coatings on cadmium metal surfaces |
| DE19740248A1 (en) * | 1997-09-12 | 1999-03-18 | Henkel Kgaa | Aqueous chromating or post-passivating solution |
-
1937
- 1937-04-12 GB GB10354/37A patent/GB482689A/en not_active Expired
-
1938
- 1938-09-13 GB GB26684/38A patent/GB510487A/en not_active Expired
- 1938-12-28 FR FR848117D patent/FR848117A/en not_active Expired
-
1939
- 1939-02-07 US US255165A patent/US2224245A/en not_active Expired - Lifetime
- 1939-06-22 BE BE435038D patent/BE435038A/en unknown
Also Published As
| Publication number | Publication date |
|---|---|
| GB482689A (en) | 1938-04-04 |
| FR848117A (en) | 1939-10-24 |
| US2224245A (en) | 1940-12-10 |
| BE435038A (en) | 1939-07-08 |
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